All-solid-state battery

Abstract

An all-solid-state battery includes a positive electrode layer including a positive electrode active material layer and a positive electrode current collector; a negative electrode layer including a negative electrode active material layer and a negative electrode current collector; a solid electrolyte layer; and an insulating film, in which the insulating film has therein a through-hole in which a laminate in which the positive electrode active material layer, the solid electrolyte layer, and the negative electrode active material layer are sequentially stacked is housed, the laminate and the insulating film are arranged between the positive electrode current collector and the negative electrode current collector, and an external shape of the insulating film is larger than external shapes of the positive electrode current collector and the negative electrode current collector when viewed in a plan view in a laminating direction of the laminate.

1 . An all-solid-state battery comprising:
 a positive electrode layer including a positive electrode active material layer and a positive electrode current collector;   a negative electrode layer including a negative electrode active material layer and a negative electrode current collector;   a solid electrolyte layer; and   an insulating film,
 wherein the insulating film has therein a through-hole in which a laminate in which the positive electrode active material layer, the solid electrolyte layer, and the negative electrode active material layer are sequentially stacked is housed, 
 wherein the laminate and the insulating film are arranged between the positive electrode current collector and the negative electrode current collector, and 
 wherein an external shape of the insulating film is larger than external shapes of the positive electrode current collector and the negative electrode current collector when viewed in a plan view in a laminating direction of the laminate. 
   
     
     
         2 . The all-solid-state battery according to  claim 1 ,
 wherein the laminate is thicker than the insulating film.   
     
     
         3 . The all-solid-state battery according to  claim 1 ,
 wherein the laminate is arranged apart from the insulating film by 0.1 mm to 1 mm when viewed in a plan view in a laminating direction.   
     
     
         4 . The all-solid-state battery according to  claim 1 ,
 wherein the insulating film is a resin.   
     
     
         5 . The all-solid-state battery according to  claim 1 , further comprising:
 a plurality of the laminates,   wherein the insulating film has a number of through-holes corresponding to the number of the laminates, and   wherein the plurality of laminates are respectively housed in the through-holes.   
     
     
         6 . The all-solid-state battery according to  claim 1 , further comprising:
 a plurality of units each having the positive electrode layer, the negative electrode layer, the solid electrolyte layer, and the insulating film,   wherein the plurality of units are electrically connected in series.   
     
     
         7 . The all-solid-state battery according to  claim 1 , further comprising:
 a plurality of units each having the positive electrode layer, the negative electrode layer, the solid electrolyte layer, and the insulating film,   wherein the plurality of units are electrically connected in parallel.